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Cannot switch the device to upgrade mode.

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Posted at 9/4/2018 15:39:49      1#
Last edited by eschoi@huvitz.c In 9/7/2018 09:08 Editor

follow next step.
1.power on with external 12V adapter
    AIO-3399J needs external power for mode change
2.plug usb cable to upper side



3.push and hold recover swich
4.push and release reset switch
5.you can see next device on your PC


good luck

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